Google Maps and Waze will finally work in Madrid’s tunnels. The key is Bluetooth beacons
Earlier this year, Google Maps added the support for Bluetooth positioning beacons in tunnels. This way, if these beacons are installed in the tunnel, Google Maps can use them to know your position accurately despite the lack of GPS coverage, which is common in tunnels. The problem? That many tunnels do not have these beacons, ...








